Mauretania Caesariensis

Mauretania Caesariensis was a Roman province in North Africa which existed from 42 AD to 662 AD, with Caesarea (Chercell) serving as its capital. It split from the Africa Proconsularis province during the reign of Claudius, and it became a part of the Diocese of Africa under Diocletian. In 662 AD, the province was conquered by the Umayyad Caliphate.